Case for a stringed instrument



FIG. 1 is a front and left side perspective view of a case for a stringed instrument, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIGS. 3-5 depict portions of a case for a stringed instrument, which form no part of the claimed design. 

CLAIM The ornamental design for a case for a stringed instrument, as shown and described. 